87038985 has 64 divisors (see below), whose sum is σ = 159563520. Its totient is φ = 40135680.

The previous prime is 87038957. The next prime is 87038989. The reversal of 87038985 is 58983078.

It is a happy number.

It is not a de Polignac number, because 87038985 - 2⁶ = 87038921 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (87038989) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 323431 + ... + 323699.

It is an arithmetic number, because the mean of its divisors is an integer number (2493180).

Almost surely, 2^87038985 is an apocalyptic number.

It is an amenable number.

87038985 is a deficient number, since it is larger than the sum of its proper divisors (72524535).

87038985 is a wasteful number, since it uses less digits than its factorization.

87038985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 87038985 is about 9329.4686343864. The cubic root of 87038985 is about 443.1709378765.

The spelling of 87038985 in words is "eighty-seven million, thirty-eight thousand, nine hundred eighty-five".